Downloaded from https://www.everyspec.com UNCLASSIFIED AD NUMBER AD830272 LIMITATION CHANGES TO: Approved for public release; distribution is unlimited. Document partially illegible. FROM: Distribution authorized to U.S. Gov't. agencies and their contractors; Administrative/Operational Use; AUG 1964. Other requests shall be referred to Army Materiel Command, Alexandria, VA. Document partially illegible. AUTHORITY USAMC ltr, 2 Jul 1973 THIS PAGE IS UNCLASSIFIED